Superhero movies shake up the collector’s market; that’s a given. With the premier of Black Panther and the rave reviews it’s gathering, what we’re seeing is that it’s a different ballgame when a studio puts out a good movie.

Case in point: Fantastic Four #52, the first appearance of Black Panther.

There have been 21 recorded sales of CGC graded copies of a 6.0 Fantastic Four #52. Seventeen of those sold in February, and the price has been climbing since the movie’s debut. Since February 21, the 6.0 FF #52s have consistently sold for over $600. While there was a sale of $695 earlier in the month, most times that particular grade was selling for closer to $550. Now that the movie has dominated the box office, and the reviews are ecstatic, you can expect it to stay in that $600-$700 range.

Another example is Killmonger, the movie’s primary antagonist. Since the first trailer was dropped last summer, sales of Killmonger’s first appearance in Jungle Action #6 have been steadily on the rise. In January, two CGC 9.0s had sold for $184 and $188, respectively. A month later, it was bringing more than $200. By February 18, a near-mint copy of JA #6 had sold for $300.

While Thor: Ragnarok didn’t garner quite the praise as Black Panther, it was nonetheless a crowd pleaser, and the first appearance of Hela has gotten a bump from the popularity. Journey into Mystery #102, at a 6.0 grade, was generally selling for between $200-$300 last spring. By the time she made her film debut in November, that price had shot up to the $400-$450 range.

On the contrary, a truly awful movie can have the reverse affect.

Take a look at Fantastic Four: Rise of the Silver Surfer. Everyone has an opinion when it comes to movies, but by and large this is considered a very bad one. It was so bad that it actually lowered the value of Fantastic Four #48, which was the basis for the movie’s plot and featured the first appearances of the Silver Surfer and Galactus. Values for a mid-grade 6.0 dropped upon the movie’s release in June 2007. In May of that year, two 6.0s had sold for $300 and $305. When July rolled around, that same grade was selling for as low as $169 and no higher than $255. By the end of 2007, the last recorded sale for that grade was $194, which is quite the decrease from those May prices.

The comic that took the biggest hit due to a bad movie was Iron Fist #14.

Sabretooth had already made his film debut in 2000’s X-Men, which arguably kicked off the modern superhero movie craze. In 2009, Fox released X-Men Origins: Wolverine, which featured Sabretooth as Wolverine’s main antagonist. That movie, which most fans deplore, significantly damaged the value of Iron Fist #14, otherwise known as Sabretooth’s first appearance. A year before the movie was released, excitement for the film pushed sales of a mid-grade 6.0 to as much as $130. However, the movie was such a disappointment that by 2009, that same copy was selling for as low as $46.