flash backs in my film

today i began the planning of the flashbacks which i would include in my film. i don't want to over complicate this project as i cant afford it to take more time then needed, so i am trying to keep it simple. I have decided to use a friend from my film studies class to act the part of Mark in my film. in using a Friend from my film studies thee is a higher chance of reliability. i am still using the same girl to play the part of Mary as she is still willing to act for me.