Tom Hanks, Julia Roberts and Michael J. Fox star in movies playing this weekend on broadcast and cable stations.

Take a look.

Friday, Sept. 18

Legally Blonde (2001): A jilted college graduate considers Harvard Law School the ideal spot for revenge against her ex-boyfriend. Reese Witherspoon (and her poodle) star. 8:30 p.m. E!

Saturday, Sept. 19

Raiders of the Lost Ark (1980): What if an adventurous archaeologist discovers an ultimate search for buried treasure? Harrison Ford stars in this Spielberg classic. 10:50 a.m. and 7 p.m. SPK.

Erin Brockovich (2000): What if a determined citizen makes it her cause to force a giant public utility to do what’s right for people in its communities? Julia Roberts won an Oscar. 3 p.m. and 9 p.m. CMT.

Back to the Future (1985). What if a young man discovers how the miracle of time travel can take him back to a time when his parents were teenagers? Michael J. Fox stars. 3:36 p.m. Syfy.

Guys and Dolls (1955). What if a fast-talking gambler tries to find a way to get to know a vulnerable lady? Marlon Brando and Jean Simmons star in a musical from Broadway. 8 p.m. TCM.

The Proposal (2009): What if an ambitious book editor asks her assistant to marry her so she can stay in the United States? Sandra Bullock and Ryan Reynolds star. 9:30 p.m. E!

Sunday, Sept. 20

Captain Phillips (2013): What if an American cargo ship is hijacked by Somali pirates? Tom Hanks stars in a true story directed by Paul Greengrass. 11:30 a.m. A&E.

Going My Way (1944): What if a kind-hearted priest soothes of the souls of members of his parish? Bing Crosby won an Oscar for portraying Father O’Malley in this Best Picture winner. 12:15 p.m. TCM.

Royal Wedding (1951): What if brother-and-sister performers take their act to London at the time of the wedding of Princess Elizabeth and Prince Phillip? Fred Astaire stars. 2:30 p.m. TCM.

Guess Who’s Coming to Dinner? (1967): What if parents don’t know how to react when their white daughter decides to marry a black man? Katherine Hepburn won her second Oscar. 6 p.m. TCM.