The two giant monsters from the title are unfrozen from an iceberg after having been trapped alive since prehistoric times only to cause destruction and mayhem.
A megalodon (giant prehistoric shark) and a giant octopus, flash-frozen mid-combat in the last ice age, wake up and go on separate rampages before getting back into a tussle for the climax. Co-starring marine biologist Debbie Gibson (“It’s not easy being brilliant under armed guard”) and ponytailed officer Lorenzo Lamas (“If we don’t find a viable means of stopping this fucker, Sharkzilla’s gonna own the seas!”), this is on a par with or just worse than Shark In Venice or Boa Vs. Python, but has at least one talkworthy moment (the in-flight shark attack). Internet giggling may have stirred this surprising cinema release.
Daft, plain daft. With a few daft but spectacular stunts.