15 Till Midnight (2010)
Story of lead character regaining his wife through time paradoxes is similar.
deals with real science related to the plot of the film
The costume of "Reverse Lukas" is meant to resemble the "Strangers" from Dark City.
Office worker/Boss scene is a direct reference of "Lumberg"...
Theme - killer who leaps over parallel worlds
The main character's storyline's and relationships between the women in his life are very similar in both films, admittedly so.
Deals with the same real world science this film is derived from
deals with similar themes in regards to the many worlds theory
Brandon Slagle's character in Song of the Shattered references his character in 15 Till Midnight. Each film also features Brandon Slagle and Devanny Pinn as portraying each others "alternate" love interest.