No, the program that you are using to burn to a disk will probably give you an error message at the start, saying that your data (in this case a movie) is too large to fit the target dvd.
Most movies that are dvd-video will fit a double layer dvd however. Those dvds have two dye layers where the information is burned on the disk. Virtually any dvd burner made in the last 5 or 6 years is capable of burning to double layer disks. The only problems come in choosing the right disks and the correct burning speed. We recommend Verbatim brand double layer disks. I burn them at 4x speed.
Movies come in all sorts of formats these days. The most common of course is dvd-video. Most commercially made dvds have encryption on them to prevent copying. We support people who wish to make backup copies of movies that they own, so we can give advice about how to do that here. The rest of this post assumes you are trying to make a backup copy of a commercial dvd.
Two of the best dvd decryption programs available these days are DVDFab and AnyDVD. DVDFab is an all-in-one program for removing encryption and reducing the size to fit a normal, single layer dvd. AnyDVD is just a decryption program, but it can run in the background and let you reduce the size with a free program called DVDShrink.
You can download the free trial for DVDFab here: http://www.dvdfab.com/
The free trial for AnyDVD is here: http://www.slysoft.com/en/
And DVDShrink can be found here: http://www.videohelp.com/tools/DVD_Shrink
There is one free section within DVDFab called DVDFab HD Decrypter. It will continue to function as a decryption program and let you rip the dvd to the hard drive, but won't shrink to fit after the trial is over. It also lags behind the commercial version by 30-60 days on the ability to rip newer movies that come out with new protection schemes. But it is the closest thing we have to a free program that is fully up to date on decryption.
DVDShrink can work with the output from DVDFab HD Decrypter. Shrink can also decrypt and rip movies to the hard drive, but only for those with simple encryption, not most of the newer ones. If you use it in conjunction with AnyDVD, you can rip and compress virtually any movie out there. In case you are working with non-commercially made dvds which have no encryption, Shrink can reduce their size also, to fit a regular dvd.
To do the actual burning to the disk, I use a free program called ImgBurn. www.imgburn.com