Swearing Allegiance is a 1997 American drama genre film based on real life incident of Diane Zamora in Texas. The film starred Holly Marie Combs , David Lipper, Cassidy Rae, Dee Wallace, Gary Grubbs, Kurt Fuller, and Joanna Garcia. The story is same as the real life case of David Graham and Diane Zamora. It revolves around two best friends who turn out to be soul mates and who swear to stay together forever and ever, even to the point where David's apparently confessed infidelity leads to the couple's murder of the girl he cheated with.
| Release date: | December 20, 1997 |
| Directed by: | Richard A. Colla |
| Runtime: | 145 Minutes |
| Producer: | John Perrin Flynn, Megan Callaway |
| Editor: | David Brenner, Joe Hutshing |
| Music by: | Dennis McCarthy |
| Estimated budget: | $14,000,000 |