It's hard to imagine that the original Deadpool almost didn't happen. Its test footage "leak" was the catalyst to having Fox, who owns the movie rights to the character, finally knowing exactly what they had.
Avengers - Infinity War
Ready Player One
Tomb Raider
Black Panther
Star Wars: Episode VIII - The Last Jedi
Justice League
Thor: Ragnarok
Thor has probably been the most inconsistent Avenger thus far in terms of his own solo films. The first movie attempted to be a Shakespearean epic, while the following film, Thor: The Dark World, while having a few ok moments, didn't quite measure up when compared to the likes of the Iron Man and Captain America sequels.
Blade Runner 2049
I've seen the first Blade Runner movie maybe 3 or 4 times, and while I couldn't tell you exactly which cut of the movie it was, as it was years ago since I last saw it, I only vaguely remember it. However, I do recall the atmosphere, the set design, and just how visually impressive it was for the time.
LEGO Ninjago: The Movie
When the original LEGO movie was first announced, many were skeptical as to whether or not the plastic block-building toy could translate well enough into a full-length motion picture film. Thankfully, the LEGO movie ended up being a huge success, mainly due to its characters, its humor, and its heart.