Revolutionary Road, Titanic, Great Gatsby

In the original timeline, both Jack and Rose survived the Titanic sinking and, to hide from Hockley (Billy Zane), are living with new identities as Frank and April. They are fed up of their depressing lives in Revolutionary Road. So when Rose/April commits suicide, Jack decides to time travel back to Titanic days and change the course of history.
Jack the time traveller was pulling a con the entire time he was on the ship (mixes up the lake that doesn't exist, doesn't have money of the time period etc), feigning love for Rose to get close enough to switch out the diamond for a fake. He pretends to die in the ocean so Rose won't look for him and makes his way to a lifeboat.
Once back to shore, he sells the diamond to attain his massive wealth, changes his name to Gatsby, and begins to seek out his true love and the girl he left behind.

If you just want a duology, Snowpiercer is a direct sequel to Willy Wonka & the Chocolate Factory and that's just a fact.