Project Almanac[4] (formerly titled Cinema One, Almanac, and Welcome to Yesterday) is a 2015 American found footage science fiction thriller film directed by Dean Israelite and written by Jason Harry Pagan and Andrew Deutschman..

In 2014, 17-year-old high school senior and aspiring inventor David Raskin (Jonny Weston) is admitted into MIT, but is unable to afford its tuition fees. Upon learning his mother, Kathy Raskin (Amy Landecker), is planning to sell the house.

David enlists his sister Christina (Virginia Gardner) and his friends Adam Le (Allen Evangelista) and Quinn Goldberg (Sam Lerner) to go through the belongings of his father, Ben Raskin, an inventor who died in a car crash on David's 7th birthday, in the hope of finding something that David can use to get a scholarship.

David ends up finding an old camera with a video recording of his birthday, in which he briefly spots his 17-year-old self in a reflection. The four later find the blueprints of a temporal relocation device that Ben was developing for the United States military named "Project Almanac," and use the available resources to build a functional time machine, including hydrogen canisters stolen from their school.

he five agree to use the machine for personal gain on the condition that they always use it together. Adam uses it to win the lottery, Christina gets back at her bullies, Quinn aces a chemistry test to secure his academic future, and the group eventually decides to travel back to Lollapalooza three months before. David hesitates to declare his feelings for Jessie and their relationship becomes awkward. The rest of the "temporal re-location experiment" gets "worse" from there, not just for the five friends, but for their friends, the friends' families, and eventually even themselves.