Final answer:
The movies whose soundtracks reached the Top 40 on Billboard's album chart are Saturday Night Fever, The Bodyguard, Dirty Dancing, and Titanic.
Step-by-step explanation:
The movies whose soundtracks reached the Top 40 on Billboard's album chart are a) Saturday Night Fever and The Bodyguard, and d) Dirty Dancing and Titanic.
The soundtrack for Saturday Night Fever, released in 1977, was a huge success and reached the top spot on the Billboard 200 chart. It featured songs by the Bee Gees and other artists that became popular hits.
The Bodyguard soundtrack, released in 1992, was also a major hit and reached number one on the Billboard 200 chart. It featured Whitney Houston's iconic song 'I Will Always Love You'.
Dirty Dancing and Titanic are both movies that had successful soundtracks as well. The Dirty Dancing soundtrack, released in 1987, reached the top spot on the Billboard 200 chart and featured songs like 'Hungry Eyes' and '(I've Had) The Time of My Life'. The Titanic soundtrack, released in 1997, also reached number one on the Billboard 200 chart and included Celine Dion's hit song 'My Heart Will Go On'.