Seagal originally wanted to make his closing speech 20 minutes long, which might have rivaled the atmospheric effect of bovine gas emissions.

-Roger Ebert

Although another source said it was 40 minutes.

It wasn’t a massively well received film, and was notable for having an original ending that contained a 40 minute environmental message, at the conclusion of your otherwise standard Steven Seagal outing.

That ending was something Seagal was passionate about, and at that time, he had clout with Warner Bros, the studio that agreed to pay for the picture. Warners was keen for a sequel to Under Siege, and so agreed to stump up the $50m to make On Deadly Ground, on the condition that it got an Under Siege 2 as part of the bargain.

Test audiences, it’d be fair to say, weren’t best pleased with the environmental epilogue to On Deadly Ground, and it took studio pressure before Seagal bowed to the inevitable and cut the final scene down.

https://www.filmstories.co.uk/features/how-steven-seagals-planned-directorial-debut-fell-apart-at-the-last-minute/