Butterfly Film (2017) online

Teenager Jack (Liam O'Hagan Mallon), starts his first day at school where he is being guided through school by a fellow student of his year group called Jas (Luana Alta). As she learns more about him, she realizes he's involved in a secret scientific project led by a Secret Intelligence Service Agent Agent Case (Otty Warmann) where Jack is attempting to develop technology that creates wormholes based on his grandfather's previous work in physics. As the story progresses and Jas is recruited into the program, they both test the technology and end up in a deserted parallel reality to the one they were in. Upon returning to the original time line, Jack is trapped and remains in the parallel universe and must use his time and resources to repair his wormhole device to allow him to recreate a wormhole and travel back to the original time line. Simultaneously, the gravity strength of his reality is greater than that of Jas's reality, resulting in his biological clock ticking slower than ..