Hi dear,
1st of all u have to change video format which do u want to add in ur iphone...after that connect ur iphone with itune and go in
movies left hand side of itune..then go in
files and click on a
dd file to library and then slect ur video which one u want to add in ur iphone....
after that click on ur
iphone device and go in
video scrol down go in
movie section and click on
sync movies .....and then click on
sync right side on the bottom.....
ENJOY...........................BR 