answer: the entire movie was not filmed using this technique
paragraph_question: question: How realistic is the acting?, context: First,hats off to the director for using various camera tricks and techniques in engaging the viewer. It took me a few minutes to realize why the camera lens was in a severe state of vertigo the first 15 minutes into the film. Thank goodness however the entire movie was not filmed using this technique ! Probably would have passed out. The reason for the swirling and sickening motion of the lens and the droning of the high tech synth sound of the soundtrack in the beginning is to capture  the madness of the moment of how one man and his friend are seeking vengeance for a heinous crime (rape) committed against his girlfriend. It also transports you into his head.The entire story is told in a backwards sort of chronological order leading to previous possible events and circumstances that led to Monica Belucci's character becoming a rape victim. The rape scene is one of the most graphic I have seen in any film in my entire life ! You will begin to actually wonder if the scene indeed was real or not. The rape scene alone is one that can haunt the viewer for time to come. Other violent acts are just as equally shocking and extremely believable due to excellent makeup, special effects, and possible cg effects. There is frontal nudity of both male and female actors that may offend some viewers (this is definitely not for children, either)!The biggest mind trick played on the audience is how the movie progresses in real viewing time, yet, you must keep in mind that the story is unfolding backwards. Hence leading to the beginning and not the end. As we follow Belluci's character and the others one soon almost forgets the first 15 shocking minutes of the film, including the underpass rape scene, and start to think that there is a happy ending. There is NO happy ending (nor beginning for that matter)...I went out on a limb to see this one, particularly since Roeper and Ebert raved about it. Well, in all honesty, it is a very brutal movie to sit through the first time and it is definitely not one I will be seeing again. Due to the filming and stroytelling techniques and all too realistic effects it does merit some attention but only by viewers who can stomach it !... 
sentence: Thank goodness however the entire movie was not filmed using this technique !
paragraph: First,hats off to the director for using various camera tricks and techniques in engaging the viewer. It took me a few minutes to realize why the camera lens was in a severe state of vertigo the first 15 minutes into the film. Thank goodness however the entire movie was not filmed using this technique ! Probably would have passed out. The reason for the swirling and sickening motion of the lens and the droning of the high tech synth sound of the soundtrack in the beginning is to capture  the madness of the moment of how one man and his friend are seeking vengeance for a heinous crime (rape) committed against his girlfriend. It also transports you into his head.The entire story is told in a backwards sort of chronological order leading to previous possible events and circumstances that led to Monica Belucci's character becoming a rape victim. The rape scene is one of the most graphic I have seen in any film in my entire life ! You will begin to actually wonder if the scene indeed was real or not. The rape scene alone is one that can haunt the viewer for time to come. Other violent acts are just as equally shocking and extremely believable due to excellent makeup, special effects, and possible cg effects. There is frontal nudity of both male and female actors that may offend some viewers (this is definitely not for children, either)!The biggest mind trick played on the audience is how the movie progresses in real viewing time, yet, you must keep in mind that the story is unfolding backwards. Hence leading to the beginning and not the end. As we follow Belluci's character and the others one soon almost forgets the first 15 shocking minutes of the film, including the underpass rape scene, and start to think that there is a happy ending. There is NO happy ending (nor beginning for that matter)...I went out on a limb to see this one, particularly since Roeper and Ebert raved about it. Well, in all honesty, it is a very brutal movie to sit through the first time and it is definitely not one I will be seeing again. Due to the filming and stroytelling techniques and all too realistic effects it does merit some attention but only by viewers who can stomach it !... 
sentence_answer: Thank goodness however <hl> the entire movie was not filmed using this technique <hl> !
paragraph_answer: First,hats off to the director for using various camera tricks and techniques in engaging the viewer. It took me a few minutes to realize why the camera lens was in a severe state of vertigo the first 15 minutes into the film. Thank goodness however <hl> the entire movie was not filmed using this technique <hl> ! Probably would have passed out. The reason for the swirling and sickening motion of the lens and the droning of the high tech synth sound of the soundtrack in the beginning is to capture the madness of the moment of how one man and his friend are seeking vengeance for a heinous crime (rape) committed against his girlfriend. It also transports you into his head.The entire story is told in a backwards sort of chronological order leading to previous possible events and circumstances that led to Monica Belucci's character becoming a rape victim. The rape scene is one of the most graphic I have seen in any film in my entire life ! You will begin to actually wonder if the scene indeed was real or not. The rape scene alone is one that can haunt the viewer for time to come. Other violent acts are just as equally shocking and extremely believable due to excellent makeup, special effects, and possible cg effects. There is frontal nudity of both male and female actors that may offend some viewers (this is definitely not for children, either)!The biggest mind trick played on the audience is how the movie progresses in real viewing time, yet, you must keep in mind that the story is unfolding backwards. Hence leading to the beginning and not the end. As we follow Belluci's character and the others one soon almost forgets the first 15 shocking minutes of the film, including the underpass rape scene, and start to think that there is a happy ending. There is NO happy ending (nor beginning for that matter)...I went out on a limb to see this one, particularly since Roeper and Ebert raved about it. Well, in all honesty, it is a very brutal movie to sit through the first time and it is definitely not one I will be seeing again. Due to the filming and stroytelling techniques and all too realistic effects it does merit some attention but only by viewers who can stomach it !... 
paragraph_sentence: First,hats off to the director for using various camera tricks and techniques in engaging the viewer. It took me a few minutes to realize why the camera lens was in a severe state of vertigo the first 15 minutes into the film. <hl> Thank goodness however the entire movie was not filmed using this technique ! <hl> Probably would have passed out. The reason for the swirling and sickening motion of the lens and the droning of the high tech synth sound of the soundtrack in the beginning is to capture the madness of the moment of how one man and his friend are seeking vengeance for a heinous crime (rape) committed against his girlfriend. It also transports you into his head. The entire story is told in a backwards sort of chronological order leading to previous possible events and circumstances that led to Monica Belucci's character becoming a rape victim. The rape scene is one of the most graphic I have seen in any film in my entire life ! You will begin to actually wonder if the scene indeed was real or not. The rape scene alone is one that can haunt the viewer for time to come. Other violent acts are just as equally shocking and extremely believable due to excellent makeup, special effects, and possible cg effects. There is frontal nudity of both male and female actors that may offend some viewers (this is definitely not for children, either)!The biggest mind trick played on the audience is how the movie progresses in real viewing time, yet, you must keep in mind that the story is unfolding backwards. Hence leading to the beginning and not the end. As we follow Belluci's character and the others one soon almost forgets the first 15 shocking minutes of the film, including the underpass rape scene, and start to think that there is a happy ending. There is NO happy ending (nor beginning for that matter)... I went out on a limb to see this one, particularly since Roeper and Ebert raved about it. Well, in all honesty, it is a very brutal movie to sit through the first time and it is definitely not one I will be seeing again. Due to the filming and stroytelling techniques and all too realistic effects it does merit some attention but only by viewers who can stomach it !...