The typeface used for the word "Olympus" in the poster is the same as that of the logo of company "Olympus," manufacturer of optics and cameras.
When the 7th Fleet is called back, footage is shown of an aircraft carrier, clearly marked 67. CV-67 was the USS John F. Kennedy which was retired in 2007 - six years before the movie was shot.
Alternate Versions
The edited for TNT/TBS cable TV version aside from the usual language and violence edits most notably hackneys it's edit for the part where Mike (Gerard Butler) stabs Kang (Rick Yune) in the head. Instead, the viewer witnesses Mike about to stab and then it cuts straight to Kang's body ceasing to move making it unclear that Kang was stabbed let alone where. 
