I was checking out some stuff on the upcoming Ninja Turtle movie and decided to refresh my memory on some turtle history. (Apparently there's a dedicated wiki. Although, is that really surprising?)
Several hours of browsing through articles later, I found out they created a tv movie back in 2009 called 'Turtles Forever' that combines the "new" 2003 series and the old 80s series.
Awesome, right? I thought so too.
Long story short, I found the movie.
(You can thank me now).
*The only negative is that they couldn't afford the voice actors from the original series, so everyone sounds a bit off. (I can't say anything about the 2003 series since I've never seen it).