Jason and the Argonauts (1963)

Jason and the Argonauts is a lot of fun.  Especially if you like creepy claymation.  It does have some problems though.  It runs on a bit too long.  By the time they were at Colchys I just wanted them to grab the fleece and go.  I also felt like the Hercules/Hylas relationship was handled sort of sloppily.  I understand why they didn't stick to the mythology, but I think they could have come up with something better than, "they threw a Frisbee together and now they are best friends".  (OK, so technically it was a discus, but still...)  Also, some Greek soldiers in the beginning are scene wearing theatrically Roman armor.

Olympia (1938)

This is a documentary about the 1936 Olympics, but the first few minutes is all Greek statues and wandering around the Acropolis.

The 300 Spartans

The 300 Spartans is probably most famous to modern audiences as the movie that inspired Frank Miller to write 300.  But it still holds up as a pretty entertaining film.  I did have several costume related annoyances, which I will now list.  Some of the Persian danceing girls were blonde, and there outfits pretty implausible.  Most of the men were once again wearing too many clothes.  Dureing the scene where the Greeaks are haveing a meeting there were two men in the background who I thought looked distinctly Byzantine.  Some of the male characters were wearing togas.  Overall, the men's clothes looked more Greco-Roman than altogether Greek.

Clash of the Titans

Clash of the Titans can be viewed in it's entirety here, provided you have a subscription to the right Comcast service.  I'm not going to go into all the ways this movie differs from the Perseus myth, as I would have to recount almost the entire plot.  Also, despite the title, there aren't any Titans in it.  I found this movie to be tolerable, but I started to get bored towards the end.  The acting is pretty terrible.  A lot of the male characters were wearing too much clothes for Greek men, and I noticed that at least one of Andromeda's dresses appeared to have elastic at the neckline.