- Never underestimate a woman, eh Mr. Allison?
>> The Scavengers Movie Script

- Don't underestimate me, Allison.
>> The Scavengers Movie Script

Fear me if you dare means that the person he's saying that to should be careful not to underestimate him, that he shouldn't be taken lightly.
>> 60-The Future

Do not underestimate her.
>> Pirates of the Caribbean: Dead Man's Chest 加勒比海盗2：聚魂棺Movie Script

People hate to think about bad things happening so they always underestimate their likelihood.
>> The Big Short大空头（2015） Movie Script

“You never know,” Augustus said. “I don’t underestimate him, though he’d have to step quick to beat me and Call both.” “He didn’t even look at me,” Lorena said. “I don’t think he’ll come back.” “I imagine he took you in long before he got to camp,” Augustus said. “I ain’t the only one in the world with good eyesight.” “I want to wait for Jake,” Lorena said. “I told him I’d wait.” “Don’t be foolish,” Augustus said. “You didn’t know Blue Duck was around when you told him. The man might decide he wants to use you for fish bait.” Lorena felt it was a test of Jake. She was frightened of the man, and part of her wanted to go with Gus. But she had trusted herself to Jake and she still hoped that he would make good.
>> Lonesome Dove 孤鸽镇

And now let me tell you, these men that are coming here, they're gonna underestimate you.
>> 豪勇七蛟龙 The Magnificent Seven Movie Script

You underestimate yourself, Alexei.
>> 战争之王 Lord Of War Movie Script