QotD: My Intro to the Big Screen

What was the first movie you remember seeing in a movie theater? 
Question submitted by mainmor.

I'm not certain it actually was the first movie I ever saw in a theater, but the first one I remember is The Empire Strikes Back when I was maybe 5 years old. I was visiting my aunt and uncle and away from home for one of the first times ever. I remember that Jabba the Hut scared me and creeped me out so much that my cousin had to take me out of the theater to the restroom, where I promptly threw up.

The much nicer early movie memory that I initially intended to share actually happened a few years later when a family friend took her daughter and me to see The Sound of Music at the Music Box theater in Chicago. This is a lovely, old theater that still has an organ player. The ceiling of the theater is painted like a night sky with little twinkling lights for stars. I remember being in awe of the space, and I absolutely loved the movie. It was the first (and only?) time I saw a movie in the theater that had an intermission.

Many years after that, when I was out of college, some friends and I revisited the Music Box to attend the now yearly Sound of Music sing-a-long show. They show the movie as normal, but it has the words to the songs and a bouncing ball along the bottom of the screen. Singing is encouraged -- almost required -- and many people attend wearing costumes inspired by the movie. I was a brown paper package tied up with string. And, no, I don't have a picture.