Complex sentence: Brown's screen career hit its peak in late 1989 with the release of the film "Earth Girls Are Easy", written, produced by, and starring Brown, it was based loosely on a song by the same name from her debut EP.
Split into simpler sentences: Brown's screen career hit its peak in late 1989 with the release of the film "Earth Girls Are Easy". Written, produced by, and starring Brown, it was based loosely on a song by the same name from her debut EP.