The following Animated Shorts debuted with a 2003 air date:
- No cartoons debuted in 2003.
The following Live Action films debuted with a 2003 air date:
- No Live Action films debuted in 2003.
The following pulp titles debuted with a 2003 cover date:
- No Pulps debuted in 2003.
The following pulp titles were last published with a 2003 cover date:
- No Pulps were cancelled in 2003.
See also: List of years in comics