Repository: yt-dlp
Issue: [IMDb] Support for the /title/ page.
Labels: site-enhancement

### Checklist

- [X] I'm requesting a site-specific feature
- [X] I've verified that I'm running yt-dlp version **2022.06.29** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've searched the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [ ] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

Worldwide

### Example URLs

https://www.imdb.com/title/tt8593904/

### Provide a description that is worded well enough to be understood

Currently, only the /video/ page is supported: https://www.imdb.com/video/vi3300835609/

It would be nice if the video could be downloaded from the /title/ page as well: https://www.imdb.com/title/tt8593904/

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', 'https://www.imdb.com/title/tt8593904/']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version 2022.06.29 [9d339c4]
[debug] Python 3.10.5 (CPython 64bit) - Linux-5.18.7-hardened1-1-hardened-x86_64-with-glibc2.35 (glibc 2.35)
[debug] Checking exe version: ffmpeg -bsfs
[debug] Checking exe version: ffprobe -bsfs
[debug] exe versions: ffmpeg 5.0.1 (setts), ffprobe 5.0.1, rtmpdump 2.4
[debug] Optional libraries: Crypto-3.15.0, brotli-1.0.9, certifi-2022.06.15, secretstorage-3.3.1, sqlite3-2.6.0, websockets-10.3
[debug] Proxy map: {}
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
[debug] Downloading _update_spec from https://github.com/yt-dlp/yt-dlp/releases/download/2022.06.29/_update_spec
Latest version: 2022.06.29, Current version: 2022.06.29
yt-dlp is up to date (2022.06.29)
[debug] [generic] Extracting URL: https://www.imdb.com/title/tt8593904/
[generic] tt8593904: Requesting header
WARNING: [generic] Falling back on generic information extractor.
[generic] tt8593904: Downloading webpage
[generic] tt8593904: Extracting information
[debug] Looking for video embeds
ERROR: Unsupported URL: https://www.imdb.com/title/tt8593904/
Traceback (most recent call last):
  File "/usr/lib/python3.10/site-packages/yt_dlp/YoutubeDL.py", line 1420, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/lib/python3.10/site-packages/yt_dlp/YoutubeDL.py", line 1490, in __extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 640, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/generic.py", line 4130, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://www.imdb.com/title/tt8593904/
```