Complex sentence: The alien spacecraft model featured in "Laserblast" was designed and built by Greg Jein in two weeks, and the musical score was written in five days by Joel Goldsmith and Richard Band, the first film scores for both composers.
Split into simpler sentences: The alien spacecraft model featured in "Laserblast" was designed and built by Greg Jein in two weeks. The film's musical score was written in five days by Joel Goldsmith and Richard Band, the first film scores for both composers.